private LoadUrlTaskResult loadAdFromNetwork(String url) throws Exception {
HttpGet httpget = new HttpGet(url);
httpget.addHeader("User-Agent", mUserAgent);
HttpClient httpclient = getAdViewHttpClient();
mResponse = httpclient.execute(httpget);
HttpEntity entity = mResponse.getEntity();
// Anything but a 200 OK is an invalid response.
if (mResponse.getStatusLine().getStatusCode() != HttpStatus.SC_OK
|| entity == null
|| entity.getContentLength() == 0) {
throw new Exception("MoPub server returned invalid response.");
}
// Ensure that the ad type header is valid and not "clear".
Header atHeader = mResponse.getFirstHeader("X-Adtype");
if (atHeader == null || atHeader.getValue().equals("clear")) {
throw new Exception("MoPub server returned no ad.");
}
configureAdViewUsingHeadersFromHttpResponse(mResponse);
// Handle custom event ad type.
if (atHeader.getValue().equals("custom")) {
Log.i("MoPub", "Performing custom event.");
Header cmHeader = mResponse.getFirstHeader("X-Customselector");
mIsLoading = false;
return new PerformCustomEventTaskResult(cmHeader);
}
// Handle native SDK ad type.
else if (!atHeader.getValue().equals("html")) {
Log.i("MoPub", "Loading native ad");
Header npHeader = mResponse.getFirstHeader("X-Nativeparams");
if (npHeader != null) {
mIsLoading = false;
HashMap<String, String> paramsHash = new HashMap<String, String>();
paramsHash.put("X-Adtype", atHeader.getValue());
paramsHash.put("X-Nativeparams", npHeader.getValue());
Header ftHeader = mResponse.getFirstHeader("X-Fulladtype");
if (ftHeader != null) paramsHash.put("X-Fulladtype", ftHeader.getValue());
return new LoadNativeAdTaskResult(paramsHash);
} else throw new Exception("Could not load native ad; MoPub provided no parameters.");
}
// Handle HTML ad.
InputStream is = entity.getContent();
StringBuffer out = new StringBuffer();
byte[] b = new byte[4096];
for (int n; (n = is.read(b)) != -1; ) {
out.append(new String(b, 0, n));
}
return new LoadHtmlAdTaskResult(out.toString());
}
private AdFetchResult fetch(String url) throws Exception {
HttpGet httpget = new HttpGet(url);
httpget.addHeader("User-Agent", mAdFetcher.mUserAgent);
// We check to see if this AsyncTask was cancelled, as per
// http://developer.android.com/reference/android/os/AsyncTask.html
if (isCancelled()) {
mFetchStatus = FetchStatus.FETCH_CANCELLED;
return null;
}
if (mAdView == null || mAdView.isDestroyed()) {
Log.d("MoPub", "Error loading ad: AdView has already been GCed or destroyed.");
return null;
}
HttpResponse response = mHttpClient.execute(httpget);
HttpEntity entity = response.getEntity();
if (response == null || entity == null) {
Log.d("MoPub", "MoPub server returned null response.");
mFetchStatus = FetchStatus.INVALID_SERVER_RESPONSE_NOBACKOFF;
return null;
}
final int statusCode = response.getStatusLine().getStatusCode();
// Client and Server HTTP errors should result in an exponential backoff
if (statusCode >= 400) {
Log.d(
"MoPub",
"Server error: returned HTTP status code "
+ Integer.toString(statusCode)
+ ". Please try again.");
mFetchStatus = FetchStatus.INVALID_SERVER_RESPONSE_BACKOFF;
return null;
}
// Other non-200 HTTP status codes should still fail
else if (statusCode != HttpStatus.SC_OK) {
Log.d(
"MoPub",
"MoPub server returned invalid response: HTTP status code "
+ Integer.toString(statusCode)
+ ".");
mFetchStatus = FetchStatus.INVALID_SERVER_RESPONSE_NOBACKOFF;
return null;
}
mAdView.configureAdViewUsingHeadersFromHttpResponse(response);
// Ensure that the ad is not warming up.
Header warmupHeader = response.getFirstHeader("X-Warmup");
if (warmupHeader != null && warmupHeader.getValue().equals("1")) {
Log.d(
"MoPub",
"Ad Unit ("
+ mAdView.getAdUnitId()
+ ") is still warming up. "
+ "Please try again in a few minutes.");
mFetchStatus = FetchStatus.AD_WARMING_UP;
return null;
}
// Ensure that the ad type header is valid and not "clear".
Header atHeader = response.getFirstHeader("X-Adtype");
if (atHeader == null || atHeader.getValue().equals("clear")) {
Log.d("MoPub", "No inventory found for adunit (" + mAdView.getAdUnitId() + ").");
mFetchStatus = FetchStatus.CLEAR_AD_TYPE;
return null;
}
// Handle custom native ad type.
else if (atHeader.getValue().equals("custom")) {
Log.i("MoPub", "Performing custom event.");
// If applicable, try to invoke the new custom event system (which uses custom classes)
Header customEventClassNameHeader = response.getFirstHeader("X-Custom-Event-Class-Name");
if (customEventClassNameHeader != null) {
Map<String, String> paramsMap = new HashMap<String, String>();
paramsMap.put("X-Custom-Event-Class-Name", customEventClassNameHeader.getValue());
Header customEventClassDataHeader = response.getFirstHeader("X-Custom-Event-Class-Data");
if (customEventClassDataHeader != null) {
paramsMap.put("X-Custom-Event-Class-Data", customEventClassDataHeader.getValue());
}
return new PerformCustomEventTaskResult(mAdView, paramsMap);
}
// Otherwise, use the (deprecated) legacy custom event system for older clients
Header oldCustomEventHeader = response.getFirstHeader("X-Customselector");
return new PerformLegacyCustomEventTaskResult(mAdView, oldCustomEventHeader);
}
// Handle mraid ad type.
else if (atHeader.getValue().equals("mraid")) {
Log.i("MoPub", "Loading mraid ad");
Map<String, String> paramsMap = new HashMap<String, String>();
paramsMap.put("X-Adtype", atHeader.getValue());
String data = httpEntityToString(entity);
paramsMap.put("X-Nativeparams", data);
return new LoadNativeAdTaskResult(mAdView, paramsMap);
}
// Handle native SDK ad type.
else if (!atHeader.getValue().equals("html")) {
Log.i("MoPub", "Loading native ad");
Map<String, String> paramsMap = new HashMap<String, String>();
paramsMap.put("X-Adtype", atHeader.getValue());
Header npHeader = response.getFirstHeader("X-Nativeparams");
paramsMap.put("X-Nativeparams", "{}");
if (npHeader != null) {
paramsMap.put("X-Nativeparams", npHeader.getValue());
}
Header ftHeader = response.getFirstHeader("X-Fulladtype");
if (ftHeader != null) {
paramsMap.put("X-Fulladtype", ftHeader.getValue());
}
return new LoadNativeAdTaskResult(mAdView, paramsMap);
}
// Handle HTML ad.
String data = httpEntityToString(entity);
return new LoadHtmlAdTaskResult(mAdView, data);
}